Geochemical data of pore water was gained from short sediment cores in Potter Cove (King George Island, Antarctica) beginning of 2019. The aim of this study was to identify and analyse the distribution and abundance of microbial populations in sediments influenced by enhanced iron input and glacial retreat, comparing 9 sampling sites across the Cove with varying distance to the glacial fronts. Geochemical parameters in pore water (dissolved ferrous iron, phosphate, silicate, ammonium, sulfate, chloride, cations) were measured on duplicate cores per site.